Method and device for estimating state of charge of battery, and equipment

Method and device for estimating state of charge of battery, and equipment

The invention provides a method for estimating the state of charge of a battery. The method comprises the following steps: searching a relation mapping table according to the temperature of the battery at the current moment and the state of charge value of the battery at a first moment, obtaining th...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHEN LUPING, HUANG JIAN, XU RUIGEN, CHEN MINGWEN
Format: Patent
Sprache:chi ; eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator CHEN LUPING
HUANG JIAN
XU RUIGEN
CHEN MINGWEN
description The invention provides a method for estimating the state of charge of a battery. The method comprises the following steps: searching a relation mapping table according to the temperature of the battery at the current moment and the state of charge value of the battery at a first moment, obtaining the internal resistance value of the battery at the current moment, and determining the open-circuit voltage of the battery at the current moment according to the voltage at the two ends of the battery at the current moment, the internal resistance value of the battery at the current moment and the charging/discharging current at the current moment; determining a first state-of-charge value of the battery at the current moment according to the open-circuit voltage of the battery at the current moment and a preset corresponding relation between the open-circuit voltage and the state-of-charge; and according to the first charge state value of the battery at the current moment, the change capacity of the battery from th
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN112986842A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN112986842A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN112986842A3</originalsourceid><addsrcrecordid>eNrjZPDyTS3JyE9RSMxLUUhJLctMTlVIyy9SSC0uycxNLMnMS1coLkksSVXIT1NIzkgsSgezkhJLSlKLKnXAulILSzMLclPzSngYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GhkaWFmYWJkaMxMWoA0ys0ig</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Method and device for estimating state of charge of battery, and equipment</title><source>esp@cenet</source><creator>CHEN LUPING ; HUANG JIAN ; XU RUIGEN ; CHEN MINGWEN</creator><creatorcontrib>CHEN LUPING ; HUANG JIAN ; XU RUIGEN ; CHEN MINGWEN</creatorcontrib><description>The invention provides a method for estimating the state of charge of a battery. The method comprises the following steps: searching a relation mapping table according to the temperature of the battery at the current moment and the state of charge value of the battery at a first moment, obtaining the internal resistance value of the battery at the current moment, and determining the open-circuit voltage of the battery at the current moment according to the voltage at the two ends of the battery at the current moment, the internal resistance value of the battery at the current moment and the charging/discharging current at the current moment; determining a first state-of-charge value of the battery at the current moment according to the open-circuit voltage of the battery at the current moment and a preset corresponding relation between the open-circuit voltage and the state-of-charge; and according to the first charge state value of the battery at the current moment, the change capacity of the battery from th</description><language>chi ; eng</language><subject>MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; TESTING</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20210618&amp;DB=EPODOC&amp;CC=CN&amp;NR=112986842A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20210618&amp;DB=EPODOC&amp;CC=CN&amp;NR=112986842A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>CHEN LUPING</creatorcontrib><creatorcontrib>HUANG JIAN</creatorcontrib><creatorcontrib>XU RUIGEN</creatorcontrib><creatorcontrib>CHEN MINGWEN</creatorcontrib><title>Method and device for estimating state of charge of battery, and equipment</title><description>The invention provides a method for estimating the state of charge of a battery. The method comprises the following steps: searching a relation mapping table according to the temperature of the battery at the current moment and the state of charge value of the battery at a first moment, obtaining the internal resistance value of the battery at the current moment, and determining the open-circuit voltage of the battery at the current moment according to the voltage at the two ends of the battery at the current moment, the internal resistance value of the battery at the current moment and the charging/discharging current at the current moment; determining a first state-of-charge value of the battery at the current moment according to the open-circuit voltage of the battery at the current moment and a preset corresponding relation between the open-circuit voltage and the state-of-charge; and according to the first charge state value of the battery at the current moment, the change capacity of the battery from th</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPDyTS3JyE9RSMxLUUhJLctMTlVIyy9SSC0uycxNLMnMS1coLkksSVXIT1NIzkgsSgezkhJLSlKLKnXAulILSzMLclPzSngYWNMSc4pTeaE0N4Oim2uIs4duakF-fGpxQWJyal5qSbyzn6GhkaWFmYWJkaMxMWoA0ys0ig</recordid><startdate>20210618</startdate><enddate>20210618</enddate><creator>CHEN LUPING</creator><creator>HUANG JIAN</creator><creator>XU RUIGEN</creator><creator>CHEN MINGWEN</creator><scope>EVB</scope></search><sort><creationdate>20210618</creationdate><title>Method and device for estimating state of charge of battery, and equipment</title><author>CHEN LUPING ; HUANG JIAN ; XU RUIGEN ; CHEN MINGWEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN112986842A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>CHEN LUPING</creatorcontrib><creatorcontrib>HUANG JIAN</creatorcontrib><creatorcontrib>XU RUIGEN</creatorcontrib><creatorcontrib>CHEN MINGWEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>CHEN LUPING</au><au>HUANG JIAN</au><au>XU RUIGEN</au><au>CHEN MINGWEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method and device for estimating state of charge of battery, and equipment</title><date>2021-06-18</date><risdate>2021</risdate><abstract>The invention provides a method for estimating the state of charge of a battery. The method comprises the following steps: searching a relation mapping table according to the temperature of the battery at the current moment and the state of charge value of the battery at a first moment, obtaining the internal resistance value of the battery at the current moment, and determining the open-circuit voltage of the battery at the current moment according to the voltage at the two ends of the battery at the current moment, the internal resistance value of the battery at the current moment and the charging/discharging current at the current moment; determining a first state-of-charge value of the battery at the current moment according to the open-circuit voltage of the battery at the current moment and a preset corresponding relation between the open-circuit voltage and the state-of-charge; and according to the first charge state value of the battery at the current moment, the change capacity of the battery from th</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language chi ; eng
recordid cdi_epo_espacenet_CN112986842A
source esp@cenet
subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Method and device for estimating state of charge of battery, and equipment
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T22%3A59%3A10IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=CHEN%20LUPING&rft.date=2021-06-18&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN112986842A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true